#include "test.hpp"
using namespace std;

void Stu::getv(void){
    cout<<a<<" "<<b<<endl; 
}

class Stu::In{
public:
    friend std::ostream &operator<<(std::ostream &os, const Stu::In &inc);
};


std::ostream &operator<<(std::ostream &os, const Stu::In &inc){
    std::cout<<"hello"<<std::endl;
}

void Stu::fff(){
    Stu::In ins;
    cout<<ins<<endl;
}
